On Wed, Aug 04, 2010 at 08:57:42PM +0200, WanMil wrote:
El 04/08/10 17:10, Marko Mäkelä escribió:
Unless you can provide an example where a two-way motorway link that is tagged as oneway=no is misbehaving, I think we should leave the default style as is. (A lazy mapper could forget the oneway=yes, assuming that "everyone knows" that motorway links are oneway, and you could get bogus instructions "leave the motorway at the next entry (not exit)".)
I think that is reasonable, so leave the default style as it is now.
Marko, I think you should remove the add oneway=yes. There are a lot of highway=motorway_link that are no oneways and are not tagged with oneway=no. Most mappers do not use oneway=no, because the common understanding of oneway is that oneway=no is superfluous. I know that most of these links should be referenced by two ways, but at the moment they aren't.
I have started a quick look around. In each country I needed 1 try only to get a motorway_link without a oneway tag, where it should be oneway=no. France: http://www.openstreetmap.org/browse/way/30069642 Germany: http://www.openstreetmap.org/browse/way/4927295 Luxemburg: http://www.openstreetmap.org/browse/way/23002279 Swiss: http://www.openstreetmap.org/browse/way/57727007 Italy: seems to be ok (I didn't find a quick example)
Let's see: osmosis --rx finland.osm --tf accept-ways highway=motorway_link --tf reject-ways oneway=\* --used-node --wx finland-motorway_link.osm yielded 101 ways. I checked some 10 of them, and all should have been oneway=yes. I have no strong opinion on this. If nobody objects, I will remove the add oneway=yes from highway=motorway_link next week. Marko